Easy to Use: This stick- tire patch kit is very simple and can be done quickly with minimal tools All you need to do is start by cleaning the punctured area on the inner tube and rasp the area where the hole is Peel the back film of the patch to expose the adhesive side. Apply a patch over the puncture. firmly for to allow the patch to bond to the inner tube and re-inflate the tire Reliable and : This self-adhesive bike patches are made of high-quality material, flexible, and strong adhesion Please note that the patches not stay on forever and eventually come off. Factors such as how much and how often you ride, the tire pressure, the bike weight, and the changing temperature play a role in the wear and tear of the patch. type:Round Colour:Black Material:Foam Package Contents: 30 x bicycle tire patch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!